EP 0725533 A3 19970115 - Processing halftone color images
Title (en)
Processing halftone color images
Title (de)
Verarbeitung von halbtongerasterten Farbbildern
Title (fr)
Traitement d'images en couleurs en demi-teintes
Publication
Application
Priority
US 38328695 A 19950203
Abstract (en)
[origin: EP0725533A2] An improved color halftoning processor has the following steps: a) receiving three or more monochrome digital images which collectively represent a color image having three color layers; and b) processing by a separate stage each of the monochrome digital images to provide halftone output images, wherein at least one of the stages uses a different processor algorithm from the other halftone processing stages so as to increase processing speed. <IMAGE>
IPC 1-7
IPC 8 full level
H04N 1/60 (2006.01); H04N 1/405 (2006.01); H04N 1/46 (2006.01); H04N 1/52 (2006.01)
CPC (source: EP US)
H04N 1/405 (2013.01 - EP US); H04N 1/52 (2013.01 - EP US)
Citation (search report)
- [PXA] EP 0670655 A1 19950906 - XEROX CORP [US]
- [A] EP 0401023 A2 19901205 - CANON KK [JP]
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0725533 A2 19960807; EP 0725533 A3 19970115; EP 0725533 B1 20011017; DE 69615878 D1 20011122; DE 69615878 T2 20020620; JP H08265590 A 19961011; US 5715073 A 19980203
DOCDB simple family (application)
EP 96200146 A 19960122; DE 69615878 T 19960122; JP 1587496 A 19960131; US 38328695 A 19950203